Radix Rehmanniae, Cacumen Platycladi, Folium Artemisiae Argyi, Folium Nelumbinis were identified by TLC, and the content of quercitrin was determined by HPLC.
To prepare Muxiang shunqi oral liquid,steam distillation,diacolation and decoction methods were adopted and compared. The results show that the steam distillation is the best process.